Two wires are tied to the 200 g sphere shown in figure. The sphere revolves in a horiIzontal circle at a constant speed of 7.80 m/s. The diagram shows a ball with two wires, each 1 m in length with a radius of .5 m(adsbygoogle = window.adsbygoogle || []).push({});

What is the tension in the upper wire?

What is the tension in the lower wire?

So, what i thought i would do was

T + mg = mv^2/r for the tension of the upper wire and

where T = 22.4

T - mg = mv^2/r for the tension of the lower wire..but after doing it i am not getting the right answers

and T = 26.3 but apparently neither are the right answers...

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# Homework Help: Tension on a wire

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